.nav
  width 100%
  height 80px
  line-height 80px
  display flex
  text-align center
  position fixed
  bottom -5px
  left 0px
  z-index 20
  .nav-item
    flex 1
    text-decoration none
    color black
    background-color white
    &.menu-chose
      color white
      background-color #C8C6C6
    &:hover
      color white
      background-color #C8C6C6



